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Worksheets

science

Total questions: 24

Worksheet time: 13mins

Name
Class
Date
1.

What is the chemical name of water

a)

H1O

b)

O2H

c)

H01

d)

H2O

2.

What is the chemical name of carbon dioxide?

a)

H02

b)

CO2

c)

C2O

d)

CHO

3.

what reacts with baking soda which leads to a explosion?

a)

vinegar

b)

lemon juice

c)

water

d)

fizzy drinks

4.

what kind of candy reacts with Coke?

a)

smarties

b)

gummy bears

c)

mentos

d)

chocolate ice cream

5.

how many elements are in the periodic table?

a)

110

b)

181

c)

118

d)

188

6.

which one is a common metals?

a)

alumnium

b)

bismuth

c)

arsenic

d)

silcon

7.

What is Newton's first law of motion?

a)

Every action has an equal opposite reaction

b)

An object in motion stays in motion unless acted upon by an unbalanced force

c)

The force acting on an object is equal to the mass of an object times its acceleration

d)

Sandwich

8.

What is the molecular structure of table salt?

a)

Sandwich

b)

Molecular who?

c)

H2O

d)

NaCl

9.

Biology is the study of what?

a)

Life

b)

Sandwich

c)

The human brain

d)

Weather

10.

What female Nobel Prize winner conducted research on radioactivity?

a)

Sandwich

b)

Tierra Guinn

c)

Marie Curie

d)

Isaac Newton

11.

Who was Dimitri Ivanovich Mendeleev?

a)

Periodic table inventor

b)

Sandwich

c)

A singer

d)

An Astronomer

12.

A low voice has...

a)

Short wavelengths

b)

No wavelengths

c)

Sandwich

d)

Long wavelengths

13.

How long does it take for light to get from the Sun to the Earth?

a)

150 million years

b)

10 seconds

c)

8 minutes

d)

Sandwich

14.

What is known as the most dangerous metal ?

a)

plutonium

b)

alumnium

15.

On adding iodine solution to starch, it _______________.

a)

Turns blue-black

b)

Turns green

c)

Remains colourless

d)

Turns red

16.

The silk worm spins cocoon in the pattern of ___________.

a)

0

b)

1

c)

6

d)

8

17.

Which one of the following is parasite?

a)

Lichens

b)

Algae

c)

Cuscuta

d)

Fungus

18.

The pitcher of pitcher plant is a modified __________.

a)

Root

b)

Stem

c)

Flowers

d)

Leaves

19.

The process of obtaining silk fibre from cocoons is called _________.

a)

Shearing

b)

Scouring

c)

Reeling

d)

Combing

20.

Bacteria act on the left over food in the teeth and form _________.

a)

Acids

b)

Bases

c)

Salts

d)

Indicators

21.

Fat is completely digested in the __________.

a)

Stomach

b)

Mouth

c)

Small intestine

d)

Large intestine

22.

The Chlorophyll traps the solar energy and converts it into _________ energy.

a)

Mechanical

b)

Chemical

c)

Magnetic

d)

Electrical

23.

Which is the term related to silk production?

a)

Sericulture

b)

Pisciculture

c)

Horticulture

d)

Apiculture

24.

We keep a healthy potted plant on a dark room for some days to _________ the leaves.

a)

Decolourise

b)

Defragment

c)

Destarch

d)

Deprotein